同义：fill one’s place(position， shoes); take the place of; take over Say， Dave， can you fill in for me tonight at the restaurant? I’d like to go out of town.
2.food for thought 令人思考的东西;
There is a lot food for thought in what he had to say.
3.for nothing 免费
To pay to see that movie would be foolish， when you can see it on TV for nothing.
4.，from top to bottom 从上到下
A： Maybe you lost your wallet in this room.
B： I’ve searched it from top to bottom..
5.get of on the wrong foot 开始事情就做错了
I got off on the wrong foot， and I don’t have any idea which way to
6.get away with 对…..摆脱惩罚
A： Did you know that Bob is leaving for home tonight? He isn’t planning to take his final exams.
B： He can’t get away with that
7.get going 赶紧行动;
A： It looks like we won’t have enough time to do all we wanted to.
B： Who says we won’t? let’s get going.
8. get on one’s nerve 招惹某人神经了
A： Why did you come to the meeting late? I left a message with your roommate about the time change.
B： She has a very short memory and it really gets on my nerve sometimes.
9. get started on 开始做
We should get started on the project.
10. get time off from work 从工作中抽时间
Oh， so she was able to get time off from the work.